These samples were generated using ElevenLabs TTSv2 on 31/03/25. The prompts took the form ‘A voice that sounds [ADJECTIVE]’, one at a time, in randomised order.

Each prompt was run three separate times, resulting in three different voices (and sentences) for each adjective. Adjectives are listed here alphabetically within the sets they belong to: status and solidarity.

• competent

• confident

• educated

• intelligent

• professional

• considerate

• friendly

• kind

• polite

• warm

Authors: Alice Ross, Prof. Lauren Hall-Lew, Dr. Nina Markl, Dr. Catherine Lai